CVE-2025-4371
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA potential vulnerability was reported in the Lenovo 510 FHD and Performance FHD web cameras that could allow an attacker with physical access to write arbitrary firmware updates to the device over a USB connection.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceLenovo 510 FHD and Performance FHD web cameras contain a vulnerability allowing an attacker with physical USB access to write arbitrary firmware updates to the device, potentially enabling firmware tampering or malicious code injection.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Physical
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify connected Lenovo webcam modelOpen Device Manager (Windows) or check /dev/video* (Linux), or use 'lsusb' command to list USB devices and look for Lenovo 510 FHD or Performance FHD web cameraAffected if The system has a Lenovo 510 FHD or Performance FHD webcam connected via USB
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Check installed firmware versionUse the webcam's utility software, firmware update tool, or check system information to identify the current firmware version of the Lenovo webcamAffected if The firmware version is older than the latest vendor-provided version or cannot be verified
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Verify USB access controlReview physical security controls around USB ports where the webcam is connected - check if unauthorized physical access to USB ports is possibleAffected if USB ports hosting the webcam are accessible to unauthorized individuals
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Confirm firmware signature verification capabilityCheck vendor documentation or firmware update logs to determine if the installed firmware version includes cryptographic signature verification for firmware updatesAffected if The firmware does not implement or enforce signature verification for firmware updates
A user is affected if they have a Lenovo 510 FHD or Performance FHD webcam connected via USB with firmware lacking signature verification, where physical USB access cannot be restricted.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataRestrict physical access to affected webcams; apply vendor-provided firmware updates that implement cryptographic signature verification for firmware; only use official Lenovo firmware from trusted sources.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-4371 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-4371 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data